1004 search results - page 38 / 201 » Safe Constraint Queries |
VLDB
2004
ACM
14 years 2 months ago
2004
ACM
Query containment is the most fundamental relationship between a pair of database queries: a query Q is said to be contained in a query Q if the answer for Q is always a subset of...
IJSSE
2011
13 years 3 months ago
2011
The Extensible Markup Language is susceptible to security breaches because it does not incorporate methods to protect the information it encodes. Our work presented in this paper f...
CL
2000
Springer
14 years 1 months ago
2000
Springer
Abstract. We consider the problem of specifying and computing consistent answers to queries against databases that do not satisfy given integrity constraints. This is done by simul...
PVLDB
2008
13 years 8 months ago
2008
Estimates of predicate selectivities by database query optimizers often differ significantly from those actually encountered during query execution, leading to poor plan choices a...
SIGOPS
2010
13 years 7 months ago
2010
Information management applications exhibit a wide range of query performance and result freshness goals. Some applications, such as web search, require interactive performance, b...